IS fighters against isolate Raqqa

US-backed rebels in Syria say they have in the north of the country captured a stretch of road the IS headquarters to Raqqa Deir al-Zor.

Kurdish sources of the Syrian Democratic Forces (SDF) have argued Monday that this ' great victory '' the city Raqqa has no roads left. The sources of observers organization Syrian Observatory for Human Rights say that the only route to and from the city now runs along the river, because roads have been cut off by IS opponents.

The extremists of IS have their roots in Sunni regions of Iraq and the Syrian Raqqa a 'caliphate' declared.